Alright! Oberon will start with the following passive abilities that'll work as long as she has her ARCUS on her with Oberon equipped:

Will have a 75% chance to prevent any abnormal statuses that thrown Eunie's way - meaning things like poisons, curses, sleep spells, mind control, etc. Obviously this can be overridden if the plot demands it.

15% to dodge a magic attack aimed at her even if she's not trying to dodge. Basically roll a 6-sided dice and see if it lands on 6.

It will also come with the following spells. These spells have a casting time and can drain energy the same way any RPG spell can.

Air Strike: Conjures a mass of compress air and can fire it at a single target

Nemesis Arrow: Fires a high-voltage blast of lightning directly forward.

Recuria: Will heal up to four people of any poisons/sleep spells/status effects. Will not work on permanent curses or anything that the plot says no.

Breath: Windy group heal! Basically heals a small amount of health to up to 4 people.

She is capable of spending regain points to further power up her Master Quartz!